EF is halfway between AD and BC.
Using the midpoint formula:

⇒

⇒

⇒

⇒

EF is
Answer:
?
Step-by-step explanation:
Answer: last option (5π√146 units²)
Step-by-step explanation:
To solve the exercise you must apply the formula for calculate the lateral area of a cone, which is shown below:

where r is the radius but L is the slant height.
As you can see in the figure attached:

But you need to find the slant height with the Pythagorean Theorem (L would be the hypotenuse):

Substitute into the formula, then:
units²
Answer:
₹42,500
Step-by-step explanation:
Let Sonali's monthly income be ₹x
<h2>According to the question </h2>







So your answer will be ₹42,500.